hacking help

hay. i've looked all over the place on the internet, but i haven't been able to find any web sites to teach me how to hack, if anyone is willing to help me learn to hack, or find me a web site, please post here

>>12

With GNU, software is free because no one can stop anyone else from getting it.

You can take a piece of GPLed code, modify it and only keep the modified version to yourself, without breaking GPL.
You can take a piece of GPLed code, modify it and only distribute it along with the patch to a closed group of people, without breaking GPL.

GPL only requires that you provide the source to whoever you're giving the software. It doesn't make it that much free.